System and method for measuring perturbations using a slow-light fiber Bragg grating sensor
US9025157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2013 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Aug 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29353
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical device, a method of configuring an optical device, and a method of using a fiber Bragg grating is provided. The optical device includes a fiber Bragg grating, a narrowband optical source, and at least one optical detector. The fiber Bragg grating has a power transmission spectrum as a function of wavelength with one or more resonance peaks, each comprising a local maximum and two non-zero-slope regions with the local maximum therebetween. The light generated by the narrowband optical source has a wavelength at a non-zero-slope region of a resonance peak that is selected such that one or more of the following quantities, evaluated at the resonance peak, is at a maximum value: (a) the product of the group delay spectrum and the power transmission spectrum and (b) the product of the group delay spectrum and one minus the power reflection spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.